I have been contemplatng buying a Uniden BCD436HP and I have been reading an online manual to familiarize myself with it. In the manual it says that Motorola Systems are limited to 28 frequencies per site or system. I can understand 28 per site but is 28 per SYSTEM correct? If I want to monitor the Louisiana statewide 700 MHz system which sometimes rotates control channel frequencies at several sites then I have a problem if I want to enter all the active control channel frequencies and alternates for each site in the system. Or can I enter several frequencies per site and have a lot more than 28 for the entires system? The 28 frequency limit is not a problem if you are sitting at home monitoring but if you get on the road and want to enter many sites there will be more than 28 frequencies. Will the scanner allow more than 28 frequencies per system?